As we know there is a multiverse.
Logos the current ultimate abstract says that the Celestials were really multiversial beings, a gardener of life in universes.
Galactus can be as powerful than a celestial (in FF we saw a great battle between Galactus and four celestials) but he is by nature an universal being. We saw also multiple Galactuses in various universes (ex GalaKtus in Ultimate universe, all the Galactuses that Abraxas killed, the Galactus weapon of the life universe or even the Galactus that the zombies ate)
Yet in Ultimates 4 Logos speak to Galactus as he is the unique Galactus, an unique being. It seems strange to me
Galactus would still be the One from a prior Universe, who merged with that Eternity, correct?
And he would be the third great power in current MU, or not?